CN101076188B

CN101076188B - Abort calling method based on TCS

Info

Publication number: CN101076188B
Application number: CN200710073602XA
Authority: CN
Inventors: 林树梁
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-03-20
Filing date: 2007-03-20
Publication date: 2013-01-16
Anticipated expiration: 2027-03-20
Also published as: WO2008113236A1; CN101076188A

Abstract

The method comprises: when the originating side has an exception, it sends a request message for disconnection to the receiving side, and turns its state into a disconnection requesting state; after receiving the request message, the receiving side sends a message of which the connection has been already cut off to the originating side, and changes its own state into a waiting state; after receiving the message from the receiving side, the originating side changes its own state into a waiting state.

Description

A kind of abort method of calling based on TCS

Technical field

The present invention relates to the short-distance wireless communication field, specifically, relate to Bluetooth technology.

Background technology

Bluetooth technology is a kind of open standard, short distance, cheaply wireless communication technology.It can link up various communication equipments with wireless mode.Equipment can connect nearly seven other bluetooth equipments.It is operated in the free frequency range of 2.4GHz ISM, and transmission range is 10cm～10m, if just increase the transmission range that power can reach 100m.This technology is low in energy consumption, little to harm, and supports multiple application model.The integrated with Bluetooth technology was increasingly popular on the portable terminal in recent years, each numerous and confused Bluetooth mobile terminal of releasing many moneys of large mobile device supplier such as Nokia, Motorola, Sony-Ericsson, LG, ZTE.The portable terminal quantity that bluetooth module is carried in the present whole world has reached several hundred million, and every year is with hundreds and thousands of ten thousand speed increase.

Important application model of Bluetooth technology is the Bluetooth cordless telephone gateway at present, that use is the special interest group of bluetooth (Special Interest Group, abbreviation SIG) cordless telephony profile (the Cordless Telephony Profile that works out, be called for short CTP), therefore be referred to as the CTP gateway.The CTP gateway can access fixed-line telephone network (PSTN), also can access the telephone communication network of any other type, and allows nearly seven addings with communicating terminal of Bluetooth wireless communication ability.Communicating terminal can be the bluetooth dual-mode mobile phone, also can be other communication apparatus, such as bluetooth single mode cordless telephone.CTP gateway and CTP Bluetooth terminal are followed the bluetooth TCS standard (BluetoothTelephony Control Specification V1.1) that SIG formulates; stipulated the collaborative requirement that gateway and Bluetooth terminal both sides need to follow in the bluetooth TCS standard; guarantee that the CTP gateway that different vendor develops can normally communicate by letter mutually with the CTP Bluetooth terminal, finish call flow.

The calling visioning procedure of the TCS regulation and stipulation of SIG (quoting the TCS call flow from the TCS of SIG regulation and stipulation) as shown in Figure 1, concrete steps are as follows:

Step 1, Calling Side (Outgoing Side) send TCS Call Control (hereinafter all being called for short CC) SETUP message to callee side (Incoming Side), and open the T303 timer, enter Call initiated (1) state; After callee side (Incoming Side) was received TCS CC SETUP message, state transition was to Call Present (6);

Step 2, callee side (Incoming Side) are opened the T302 timer, send TCS CC SETUPACKNOWLEDGE message to Calling Side (Outgoing Side), and state transition is to Overlapreceiving (25); Calling Side (Outgoing Side) is received TCS CC SETUP ACKNOWLEDGE message, closes the T303 timer, opens the T304 timer, and state transition is to Overlapsending (2); This step is optional step;

Step 3, Calling Side (Outgoing Side) send TCS CC INFORMATION message to callee side (Incoming Side), reopen the T304 timer; Callee side (Incoming Side) reopens the T302 timer after receiving TCS CC INFORMATION message; This step is optional step, and can be repeatedly;

Step 4, callee side (Incoming Side) send TCS CC CALL PROCEEDING message to Calling Side (Outgoing Side), close the T302 timer, and state transition is to Incoming callproceeding (9); Calling Side (Outgoing Side) is closed the T304 timer after receiving TCS CC CALL PROCEEDING message, opens the T310 timer; This step is optional step;

Step 5, callee side (Incoming Side) send TCS CC ALERTING message to Calling Side (Outgoing Side), and state transition is to Call received (7); Calling Side (OutgoingSide) is closed the T310 timer after receiving TCS CC ALERTING message, opens the T301 timer; This step is optional step;

Step 6, callee side (Incoming Side) send TCS CC CONNECT message to Calling Side (Outgoing Side), open the T313 timer, and state transition is to Connect request (8);

After step 7, Calling Side (Outgoing Side) are received TCS CC CONNECT message, if the T301 timer opens then cuts out, transition state sends TCS CCCONNECT ACKNOWLEDGE message to callee side (Incoming Side) to ACTIVE (10); Callee side (IncomingSide) is closed the T313 timer after receiving TCS CC CONNECT ACKNOWLEDGE message, and transition state is to ACTIVE (10).So far calling both sides is successfully set up conversation.

The concrete meaning of the TCS CC call control signalling described in the above-mentioned steps please refer to---TCS call control signalling table (Table of TCS Call Control Messages).

TCS call control signalling table (Table of TCS Call Control Messages)

Sequence number	TCS call control signalling title	Implication
			1	ALERTING	The callee side ALERTING message
2	CALL?PROCEEDING	Callee side begins to call out accepts flow process message
			3	CONNECT	Callee side user offhook message

4	CONNECTACKNOWLEDGE	Calling Side off-hook response message
			5	PROGRESS	Callee side call progress message
6	SETUP	Calling Side exhalation message
			7	SETUP?ACKNOWLEDGE	Callee side exhalation response message
8	DISCONNECT	One side is removed connection message (the calling and called side is initiatively on-hook all)
			9	RELEASE	Disconnect request message
10	RELEASE?COMPLETE	Connect and disconnected message
			11	INFORMATION	Call out incidental information message (such as the demonstration etc. of sending a telegram here)

The concrete meaning of the TCS CC call state described in the above-mentioned steps please refer to---TCS CC call state table (Table of TCS Call Status Messages).

TCS CC call state table (Table of TCS Call Status Messages)

Sequence number number	TCS call state title	TCS specified states value	Implication
				1	Null	0	Idle condition
2	Call?initiated	1	Calling Side is called out the initiation state
				3	Overlap?sending	2	Calling Side is called out retransmission state (optional)
4	Outgoing?callproceeding	3	Calling Side call progress state (optional)
				5	Call?delivered	4	Calling Side is called out the state (optional) that sent
6	Call?present	6	Callee side begins the incoming call state
				7	Call?received	7	Callee side is accepted incoming call state (optional)
8	Connection?request	8	Callee side voice connection request state
				9	Incoming?call?proceeding	9	Callee side voice connection request state (optional)
10	Overlap?receiving	25	Callee side call progress state (optional)
				11	Active	10	The call setup state
13	Disconnect?request	11	(voice) connect the dismounting solicited status
				14	Disconnect?indication	12	(voice) connect the dismounting indicating status
15	Release?request	19	The line disconnection solicited status

But, the collaborative problem that the TCS agreement exists the agreement author not consider, concrete condition is: be that Overlap receiving (25), Incoming callproceeding (9), Call received (7), Connect request (8) only can accept RELEASE message at call state, could accept TCS CC RELEASE COMPLETE message when only having call state to be Call initiated (1), Call present (6), Releaserequest (19) three.This flow scheme design will produce a problem: a called side is when having received TCS CC Setup message, (lower a piece of news can be: SETUP ACKNOWLEDGE all can directly to enter the transmission processing of lower a piece of news, CALL PROCEEDING, ALERTING, CONNECT), (NextState had transition state: Overlap receiving (25) to NextState after message sent, Incoming call proceeding (9), Call received (7), Connect request (8)), when but caller one side not yet receives this message that the callee sends, its state still is Call initiated (1), caller one side user's on-hook this moment, the message that sends to the other side is TCS CC RELEASE COMPLETE message, and a called side's call state has migrated to NextState (25 or 9 or 7 or 8), can not process TCS CC RELEASE COMPLETE message, cause the calling of callee side to discharge.Therefore, need method of invention, remedy this defective of TCS call flow.

Summary of the invention

Technical problem to be solved by this invention is to propose a kind of abort method of calling based on TCS, to solve in the prior art because there is defective in the TCS call flow, causes the fault-tolerant ability of calling and called side of audio call low.

The abort method of calling based on TCS that the present invention proposes comprises following treatment step:

1) run into unusually when initiating side, disconnect request message to the receiver side initiation, and the state that will initiate side changes over to and disconnects solicited status;

2) after receiver side is received and disconnected request message, disconnected message to initiating side transmission connection, and changed the state of receiver side into idle condition;

3) after the initiation side receives that connection has disconnected message, change the state of initiating side into idle condition.

Preferably, when initiate the request of side abort be Calling Side the time, specifically comprise following treatment step:

1.1) when Calling Side is in TCS call state Call initiated, if run into unusually, want initiatively suspended call flow process, initiate TCS CC RELEASE message to callee side, and make Calling Side enter TCS call state Release request;

1.2) when callee side was received the TCS CC RELEASE message that Calling Side sends, callee side sent TCS CC RELEASE COMPLETE message to Calling Side, and with the state transition of callee side to idle condition;

1.3) Calling Side receives the TCS CC RELEASE COMPLETE message that callee side is sent, and with Calling Side state transition to idle condition.

Preferably, in described step 1.1) in Calling Side initiate to open a timer in the TCS CC RELEASE message to callee side, be used for the duration that the TCS CCRELEASE COMPLETE message that callee side is sent is received in monitoring.

Preferably, when initiate the request of side abort be callee side the time, specifically comprise following treatment step:

2.1) when callee side is in TCS call state Call present, if run into unusually, want initiatively suspended call flow process, initiate TCS CC RELEASE message to Calling Side, and make Calling Side enter TCS call state Release request;

2.2) when Calling Side was received the TCS CC RELEASE message that callee side sends, Calling Side sent TCS CC RELEASE COMPLETE message to callee side, and with the state transition of Calling Side to idle condition.

2.3) callee side receives the TCS CC RELEASE COMPLETE message that Calling Side is sent, and with the state transition of callee side to idle condition.

Preferably, in step 2.1) in callee side initiate to open a timer in the TCS CC RELEASE message to Calling Side, be used for the duration that the TCS CC RELEASECOMPLETE message that Calling Side is sent is received in monitoring.

The secondary handshake method of taking in the call flow design that employing tradition is strict because the messaging performance of eating dishes without rice or wine is not high enough in the prior art.Adopt the method for the invention, can remedy the TCS agreement is initiated the suspended call flow process when TCS call state Call initiated (1) defective, and the calling and called both sides' of energy Effective Raise audio call fault-tolerant ability.

Description of drawings

Fig. 1 calls out the flow chart that creates message for the TCS in the existing SIG TCS standard;

Fig. 2 is the TCS Calling Side abort process chart that makes a call in the preferred embodiment of the present invention;

Fig. 3 is the TCS callee side abort flow process flow chart that makes a call in the preferred embodiment of the present invention.

Embodiment

Essence of the present invention is to allow the side direction opposite end transmission of initiating abort disconnect request message, and makes opposite side disconnect message to initiating the side feedback link; And the state transition of originating end and receiving terminal carried out standard, make it possible to process abort and call out.Namely for present process defect, improve the flow process that caller one side (Outgoing Side) abort is called out, and a called side (IncomingSide) the abort flow process of calling out, improve the fault-tolerant ability of calling both sides, the method details is as follows:

Flow process A caller one side initiatively suspended call improve step:

Step 1, when caller one side is in TCS call state Call initiated (1), if run into unusually, want initiatively suspended call flow process, must initiate TCS CC RELEASE message, enter TCS call state Release request (19);

When step 2, a called side are received the TCS CC RELEASE message that Calling Side sends, if state not yet moves, also be in Call present (6) state, then directly send TCS CC RELEASECOMPLETE message to Calling Side, and transition state is to TCS call state NULL (O).If state has migrated to one of states such as Overlap receiving (25), Incoming call proceeding (9), Callreceived (7), Connect request (8), SIG TCS standard has stipulated to support the processing of TCS CC RELEASE message.

Step 3, Calling Side are received the TCS CC RELEASE COMPLETE message that callee side is sent, and be in Release request (19) state this moment, according to SIG TCS standard, should return TCS call state NULL (O).

The called side of flow process B initiatively suspended call improve step:

When step 1, callee side are in TCS call state Call present (1), if run into unusually, want initiatively suspended call flow process, must initiate TCS CC RELEASE message, enter TCS call state Release request (19);

When step 2, Calling Side are received the TCS CC RELEASE message that callee side sends, if state not yet moves, also be in Call initiated (1) state, then directly send TCS CC RELEASE

COMPLETE message is to callee side, and transition state is to TCS call state NULL (O).If state has migrated to one of states such as Overlap sending (2), Outgoing cal l proceeding (3), Cal ldelivered (4), SIG TCS standard has stipulated to support the processing of TCS CCRELEASE message.

Step 3, callee side are received the TCS CC RELEASE COMPLETE message that Calling Side is sent, and be in Release request (19) state this moment, according to SIG TCS standard, should return TCS call state NULL (O).

Below in conjunction with Fig. 2, Fig. 3 the embodiment of above-mentioned technical solution is described in further detail, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.In the accompanying drawings:

The solution that Fig. 2 has described this paper is to flow process A TCS Calling Side the perfect of abort flow process that make a call;

As shown in Figure 2, Calling Side (Outgoing Side) sends TCS CC SETUP message to callee side, and (S401) makes a call;

After Calling Side sends TCS CC SETUP, if the calling and called both sides do not carry out the optional flow process S402 of SIG TCS regulation and stipulation, S403, S404, S405, this moment, the TCS state still was Callinitiated (1), when needing to initiate to discharge owing to internal cause, Calling Side must send TCS CC RELEASE message to callee side, open the T308 timer, (the T308 timer is to wait for RELEASE COMPLETE timer under Release request (19) state to transition state to Release request (19), the specific definitions such as timer duration are with reference to SIG TCS standard), begin to call out release (S406); If the calling and called both sides have carried out optional flow process S402, the S403 of SIG TCS regulation and stipulation, one or more step of S404, S405, then the TCS call state of calling party this moment correspondence migrate to one of the states such as Overlap sending (2), Outgoing call proceeding (3), Call delivered (4) (corresponding relation is with reference to SIG TCS standard), if this moment, the calling party was because internal cause is wanted to initiate to discharge, process getting final product according to SIG TCS regulation and stipulation;

When callee side is received TCS CC RELEASE message, if the calling and called both sides do not carry out optional flow process S402, S403, S404, the S405 of SIG TCS regulation and stipulation, the TCS call state of callee side still is in Call present (6) state, directly send TCS CC RELEASE COMPLETE message to Calling Side, and transition state to TCS call state NULL (O) (S407); If the calling and called both sides have carried out the optional flow process S402 of SIG TCS regulation and stipulation, S403, S404, one or more step of S405, then callee's TCS call state has at this moment migrated to Overlapreceiving (25), Incoming call proceeding (9), Call received (7), one of the states such as Connect request (8) (corresponding relation is with reference to SIG TCS standard), the processing of finishing TCS CC RELEASE message according to the SIGTCS regulation and stipulation get final product (with the new processing of above-mentioned Callpresent (6) state of this step);

Calling Side is received TCS CC RELEASE COMPLETE message, be in Release request (19) state this moment, according to SIG TCS standard, return TCS call state NULL (O), so far flow process A Calling Side is initiatively initiated the flow process end of unusual dismantling call.

The solution that Fig. 3 has described this paper is to flow process B TCS callee side the perfect of abort flow process that make a call;

As shown in the figure, Calling Side (Outgoing Side) sends TCS CC SETUP message to callee side, and (S501) makes a call;

When callee side is received TCS CC SETUP message, if the calling and called both sides do not carry out the optional flow process S502 of SIG TCS regulation and stipulation, S503, S504, S505, the TCS call state of callee side still is in Call present (6) state, this moment internal cause and when need to initiate discharging, callee side must send TCS CC RELEASE message to callee side, open the T308 timer, (the T308 timer is to wait for RELEASE COMPLETE timer under Release request (19) state to transition state to Release request (19), the specific definitions such as timer duration are with reference to SIG TCS standard), begin to call out release (S506); If the calling and called both sides have carried out optional flow process S502, the S503 of SIG TCS regulation and stipulation, one or more step of S504, S505, then callee's TCS call state has at this moment migrated to one of the states such as Overlap receiving (25), Incoming callproceeding (9), Call received (7), Connect request (8) (corresponding relation is with reference to SIG TCS standard), if this moment, the callee was because internal cause is wanted to initiate to discharge, process getting final product according to SIG TCS regulation and stipulation;

After Calling Side sends TCS CC SETUP, if the calling and called both sides do not carry out optional flow process S502, S503, S504, the S505 of SIG TCS regulation and stipulation, the TCS state still is Call initiated (1), this moment, Calling Side was received TCS CC RELEASE message, directly send TCS CC RELEASECOMPLETE message to callee side, and transition state to TCS call state NULL (O) (S507); If the calling and called both sides have carried out the optional flow process S502 of SIG TCS regulation and stipulation, S503, S504, one or more step of S505, then callee's TCS call state has at this moment migrated to Overlapsending (2), Outgoing call proceeding (3), one of the states such as Cal l del ivered (4) (corresponding relation is with reference to SIG TCS standard), this moment, Calling Side was received TCS CC RELEASE message, and the processing of finishing TCS CC RELEASE message according to SIG TCS regulation and stipulation gets final product (with the new processing of above-mentioned Call initiated (1) state of this step);

Callee side is received TCS CC RELEASE COMPLETE message, be in Release request (19) state this moment, according to SIG TCS standard, return TCS call state NULL (O), so far flow process B callee side is initiatively initiated unusual dismantling call flow process end.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. abort method of calling based on TCS is characterized in that described method comprises following treatment step:

1) run into unusually when initiating side, to receiver side initiation TCS CC RELEASE message, and the state that will initiate side changes TCS call state Release request over to;

2) after receiver side is received TCS CC RELEASE message, send TCS CCRELEASE COMPLETE message to initiating side, and change the state of receiver side into idle condition;

3) after the initiation side is received TCS CC RELEASE COMPLETE message, change the state of initiating side into idle condition;

Described initiation side is the Calling Side when being in TCS call state Call initiated or the callee side when being in TCS call state Call present.

2. the abort method of calling based on TCS according to claim 1 is characterized in that, when initiate the request of side abort be Calling Side the time, described method specifically comprises following treatment step:

3. the abort method of calling based on TCS according to claim 2, it is characterized in that, described step 1.1) Calling Side is opened a timer in when callee side is initiated TCS CC RELEASE message, is used for the duration that the TCS CC RELEASE COMPLETE message that callee side is sent is received in monitoring.

4. the abort method of calling based on TCS according to claim 1 is characterized in that, when initiate the request of side abort be callee side the time, described method specifically comprises following treatment step:

2.1) when callee side is in TCS call state Call present, if run into unusually, want initiatively suspended call flow process, initiate TCS CC RELEASE message to Calling Side, and make callee side enter TCS call state Release request;

5. the abort method of calling based on TCS according to claim 4, it is characterized in that, described step 2.1) callee side is opened a timer in when Calling Side is initiated TCS CC RELEASE message, is used for the duration that the TCS CC RELEASE COMPLETE message that Calling Side is sent is received in monitoring.